Science Quote by Jack London
““I call you metaphysicians because you reason metaphysically," Ernest went on. "Your method of reasoning is the opposite to that of science. There is no validity to your conclusions. You can prove everything and nothing, and no two of you can agree upon anything. Each of you goes into his own consciousness to explain himself and the universe. As well may you lift yourselves by your own bootstraps as to explain consciousness by consciousness.””
About This Quote
Source Speech: Unknown, possibly a lecture or debate, date unknown
The speaker criticizes metaphysical reasoning as self‑referential and unscientific, arguing it lacks objective validity and consensus.
In simple terms: Metaphysics is seen as circular and unprovable.
Beware circular reasoning and seek empirical evidence.
Themes
Mood
Type
When to use this quote
- academic debate
- philosophical discussion
- teaching
- critical thinking
- public lecture
Key Concepts
Questions to Reflect On
- How do you distinguish useful speculation from empty rhetoric?
- Can self‑reference ever lead to genuine insight?
Such reasoning can still inspire creative thought despite lack of proof.